NullPointerException on downrate webcam video

[AlexZvukoff_USSR]

Hi everybody!
I trying to solve the trivial problem. I want transcode video on webcam for make two stream - original (source) and low downrate (128kbs).
Im enabled transcoder in Application.xml, editing transrate.xml and more-more needed action )))
But i have this error


INFO 200 - TranscoderSessionNative.loadLibrary: Load transcoder list: C:/Program Files (x86)/Wowza Media Systems/Wowza Media Server 3.0.3/lib-native/win64/transcoder.list
INFO 200 - LiveStreamTranscoder.init[twonets/_definst_/DemonHunter]: Load transcoder template: file:///C:/Program Files (x86)/Wowza Media Systems/Wowza Media Server 3.0.3/transcoder/templates/transrate.xml
INFO 200 - JNI:TranscoderSession.isCUDAAvailable[twonets/_definst_/DemonHunter]: NVidia CUDA hardware acceleration is NOT available
INFO 200 - JNI:TranscoderSession.isQuickSyncAvailable[twonets/_definst_/DemonHunter]: Intel Quick Sync hardware acceleration is NOT available
INFO 200 - onStreamCreate - - -
INFO 200 - - - - -
INFO 200 - ON PUBLISH DemonHunter_source -
ERROR 500 - TranscoderSessionDestination.init[twonets/_definst_/DemonHunter]: [DemonHunter_source]:java.lang.NullPointerException

Senx for all answer.

[rrlanham]

What is the source? Looks like it is unreachable, perhaps.

Is the StreamType set to "live"?

Need more details.

Richard

[AlexZvukoff_USSR]

Richard, senx for reply.

"source" its simple video publish on Wowza (use netStream.publish("DemonHunter","live") ) from flash-client application. Yes, im use StreamType "live".

My Application.xml in /conf/myApp/

<Root>
	<Application>
		<Connections>
			<AutoAccept>true</AutoAccept>
			<AllowDomains></AllowDomains>
		</Connections>
		<Streams>
			<StreamType>live</StreamType>
			<StorageDir>${com.wowza.wms.context.VHostConfigHome}/content</StorageDir>
			<LiveStreamPacketizers>cupertinostreamingpacketizer, smoothstreamingpacketizer, sanjosestreamingpacketizer</LiveStreamPacketizers>
			<Properties>
			</Properties>
		</Streams>
		<Transcoder>
			<LiveStreamTranscoder>transcoder</LiveStreamTranscoder>
			<Templates>${SourceStreamName}.xml,transrate.xml</Templates>
			<ProfileDir>${com.wowza.wms.context.VHostConfigHome}/transcoder/profiles</ProfileDir>
			<TemplateDir>${com.wowza.wms.context.VHostConfigHome}/transcoder/templates</TemplateDir>
			<Properties>
			</Properties>
		</Transcoder>
		
		<SharedObjects>
			<StorageDir></StorageDir>
		</SharedObjects>
		<Client>
			<IdleFrequency>-1</IdleFrequency>
			<Access>
				<StreamReadAccess>*</StreamReadAccess>
				<StreamWriteAccess>*</StreamWriteAccess>
				<StreamAudioSampleAccess>*</StreamAudioSampleAccess>
				<StreamVideoSampleAccess>*</StreamVideoSampleAccess>
				<SharedObjectReadAccess>*</SharedObjectReadAccess>
				<SharedObjectWriteAccess>*</SharedObjectWriteAccess>
			</Access>
		</Client>
		<RTP>
			<Authentication>
				<PublishMethod>digest</PublishMethod>
				<PlayMethod>none</PlayMethod>
			</Authentication>
			<AVSyncMethod>senderreport</AVSyncMethod>
			<MaxRTCPWaitTime>12000</MaxRTCPWaitTime>
		</RTP>
		<HTTPStreamers>sanjosestreaming</HTTPStreamers>
		<MediaCaster>
			<Properties>
			</Properties>
		</MediaCaster>
		<Modules>
			<Module>
				<Name>base</Name>
				<Description>Base</Description>
				<Class>com.wowza.wms.module.ModuleCore</Class>
			</Module>
			<Module>
				<Name>properties</Name>
				<Description>Properties</Description>
				<Class>com.wowza.wms.module.ModuleProperties</Class>
			</Module>
			<Module>
				<Name>logging</Name>
				<Description>Client Logging</Description>
				<Class>com.wowza.wms.module.ModuleClientLogging</Class>
			</Module>
			<Module>
				<Name>myApp</Name>
				<Description>myApp</Description>
				<Class>com.wowza.wms.plugin.myApp</Class>
			</Module>
		</Modules>
		<Properties>
		</Properties>
	</Application>
</Root>

Also, i disable all transrate options in transrate.xml except default transrate options

<Root>
	<Transcode>
		<Encodes>
			<!-- Example Encode block for source, not required unless Member of StreamNameGroup. --> 
			<Encode>
				<Enable>true</Enable>
				<Name>source</Name>
				<StreamName>mp4:${SourceStreamName}_source</StreamName>
				<Video>
					<!-- H.264, PassThru -->
					<Codec>PassThru</Codec>
					<Bitrate>${SourceVideoBitrate}</Bitrate>
					<Parameters>
					</Parameters>
				</Video>
				<Audio>
					<!-- AAC, PassThru -->
					<Codec>PassThru</Codec>
					<Bitrate>${SourceAudioBitrate}</Bitrate>
				</Audio>
				<Properties>
				</Properties>
			</Encode>

Another block in transrate.xml set "false". <Decode> and <StreamNameGroups> use default settings.

Ready to answer any questions, please help me solve this... (

P.S.: "Looks like it is unreachable" why im may test this? Application worked correctly! Client can publish and unpublish stream, open and close stream of another user and etc.

[rrlanham]

Take a look at this article which includes a simple transcode template. Start with that.

http://www.wowza.com/forums/content....across-clients

Make sure you are setting audio to Speex.

btw, the 2nd arg or NetStream.publish can be "record" or "append", which works with StreamType "default" (see VideoRecording example). Using "live" in this place has no meaning, but is not a problem either.

Richard